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Prosecutors said Hernandez orchestrated Lloyd’s killing. In laying out the case, the prosecutor said the men had gone to a club earlier that weekend, and Hernandez was allegedly upset about developments there and claimed he could no longer trust Lloyd.

"He was mad that he had talked to some people at the club. They had gone to a club, Rumor, in the city of Boston, and at that club the victim had spoken to a couple people and the defendant told him he was upset about that because he had, essentially, troubles with those people,” said the prosecutor.

Piecing together the hours before the killing via security cameras and cellphone records, the prosecution said Lloyd texted his sister just minutes before his death, asking her if she knew who he was with that night.

"The sister, whose phone had died, now plugged it in, and at 3:19 responds, 'My phone was dead. Who?' (At) 3:22, the victim responded, ‘NFL,’" said the prosecutor.

The state claimed that sometime between 3:23 a.m. and 3:27 a.m. Hernandez and his associates, who have not been named, shot Lloyd multiple times, leaving his body in an industrial area not far from the tight end's home.

Just a few minutes later, Hernandez's recently installed security system recorded his arrival back home.

“They go into the house. The defendant was walking through the house with a gun in his hand. That's captured on video. It's the same black, semi-automatic firearm -- it appears to be a larger caliber -- and then they all go down to the basement,” said the prosecutor.

Prosecutors said the tapes go black at that point, and that weapon was never recovered.

Hernandez's lawyer said the case against his client is circumstantial and not strong.

Hernandez was ordered to be held without bail.

Earlier Wednesday, Hernandez was released by the Patriots following his arrest.

"A young man was murdered last week and we extend our sympathies to the family and friends who mourn his loss. Words cannot express the disappointment we feel knowing that one of our players was arrested as a result of this investigation. We realize that law enforcement investigations into this matter are ongoing. We support their efforts and respect the process. At this time, we believe this transaction is simply the right thing to do," the Patriots said in a team statement.

The NFL also released a statement about the arrest:

"The involvement of an NFL player in a case of this nature is deeply troubling. The Patriots have released Aaron Hernandez, who will have his day in court. At the same time, we should not forget the young man who was the victim in this case and take this opportunity to extend our deepest sympathy to Odin Lloyd's family and friends."

Lloyd, who played for the semi-pro Boston Bandits, was found slain June 17. His relatives said he was dating the sister of Hernandez's fiancee and that the two men were friends.

The Patriots drafted Hernandez, who is originally from Bristol, Conn., out of the University of Florida in 2010. Last summer, the team gave him a five-year contract worth $40 million.